Electromagnetic field analysis of rectangular superconductor with large aspect ratio in arbitrary orientated magnetic fields
Electromagnetic field analysis of rectangular superconductor with large aspect ratio in arbitrary orientated magnetic fields
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DOI：
10.1109/tasc.2005.849176
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发表时间：
2005-06
影响因子：
1.8
通讯作者：
N. Enomoto;T. Izumi;N. Amemiya
中科院分区：
文献类型：
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作者：
N. Enomoto;T. Izumi;N. Amemiya
对大截面长径比高温超导体进行了电磁场分析。该分析使用了采用FEM的数值模型，该模型由电流矢量势和磁标量势制定。具有大横截面纵横比的模型导体模拟YBCO涂层导体。边缘基函数和节点基函数分别用于矢量势和标量势。根据电流分布的时间演变计算交流损耗。提供交流传输电流和交流横向磁场具有不同的方向施加到模型导体，以计算在各种条件下的交流损耗。数值计算的交流损耗与解析值和数值值进行了比较。
An electromagnetic field analysis of high temperature superconductors with large cross-sectional aspect ratios was carried out. This analysis used a numerical model employing FEM, formulated with current vector potential and magnetic scalar potential. The model conductor with a large cross-sectional aspect ratio simulates a YBCO coated conductor. Edge basis functions and a nodal basis function were used for vector potentials and a scalar potential, respectively. The AC loss was calculated from the temporal evolution of the current distribution. AC transport current was supplied and an AC transverse magnetic field with various orientations was applied to the model conductor to calculate the AC losses at various conditions. The numerically calculated AC losses were compared with the analytical values and numerical values.